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. 2012 Jul 1;68(Pt 7):m930.
doi: 10.1107/S1600536812024786. Epub 2012 Jun 16.

[N,N'-Bis(2,4,6-trimethyl-phen-yl)ethane-1,2-diimine-κ(2)N,N']tetra-carbonyl-chromium(0)

Marilé Landman  1 , Roan Fraser, René Pretorius, Rohen Prinsloo, David C Liles, Petrus H van Rooyen
Affiliations

[N,N'-Bis(2,4,6-trimethyl-phen-yl)ethane-1,2-diimine-κ(2)N,N']tetra-carbonyl-chromium(0)

Marilé Landman et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The octa-hedral coordination of the Cr(0) atom in the title compound, [Cr(C(20)H(24)N(2))(CO)(4)], displays some distortion. This is manifested by an exocyclic torsion angle C(mesitylene)-N-Cr-C(carbon-yl) that deviates by more than 20° from planarity. Another structural feature is the significant distortion from linearity of the Cr-C-O angles of the two carbonyl groups that inter-act with both ortho-methyl groups of the two mesitylene rings. The remaining two carbonyl groups overlap with the centres of the mesitylene rings themselves and are linear within <3°.

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Figures

Fig. 1.
Fig. 1.
View of the asymmetric unit of (I). Displacement ellipsoids are shown at the 50% probability level.
See this image and copyright information in PMC

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